Black holes are regions of space where the gravitational pull is so strong that nothing, not even light, can escape. Surrounding the black hole is an event horizon, which marks the point of no return beyond which the gravitational forces are inescapable. Albert Einstein's theory of general relativity first theorized black holes by explaining how gravity can bend space and time. Black holes have immense gravitational forces that can feed on and destroy stars that come too close, collapsing them into the black hole. The largest known black holes are supermassive black holes that can be millions of times the size of our sun.
search on NASA site also go through the latest news related to black holes before presenting your seminar.
many queries are asked related to black holes.
present the astronomical data's for Good delivery of seminar.In the 18th century John Michell and Pierre-Simon Laplace first mentioned about the objects with a huge gravitation, from which even light cannot escape.
In 1915 Albert Einstein developed the theory of general relativity.
Karl Schwarzschild finds black holes as a solution to Einstein’s equations (1916)
Robert Oppenheimer and Hartland Snyder predict that massive stars can collapse into black holes (1939)
A black hole is a region of space that has so much mass concentrated in it that there is no way for a nearby object to escape its gravitational pull.”
Black holes are exotic structures whose gravitational fields are so powerful that they trap everything, even light. They were first postulated by Albert Einstein's theory of general relativity.”
This can happen when a star is dying.
Though they are black they are invisible to us.
The density of a black hole is so great it would be like taking the whole Earth and crushing into a volume smaller than a 1” marble!.
Stellar-mass: 3 to 20 times the mass of our Sun
Supermassive: Black holes with millions to billions of times the mass of our Sun
Mid-mass: In between stellar-mass and supermassive.
search on NASA site also go through the latest news related to black holes before presenting your seminar.
many queries are asked related to black holes.
present the astronomical data's for Good delivery of seminar.In the 18th century John Michell and Pierre-Simon Laplace first mentioned about the objects with a huge gravitation, from which even light cannot escape.
In 1915 Albert Einstein developed the theory of general relativity.
Karl Schwarzschild finds black holes as a solution to Einstein’s equations (1916)
Robert Oppenheimer and Hartland Snyder predict that massive stars can collapse into black holes (1939)
A black hole is a region of space that has so much mass concentrated in it that there is no way for a nearby object to escape its gravitational pull.”
Black holes are exotic structures whose gravitational fields are so powerful that they trap everything, even light. They were first postulated by Albert Einstein's theory of general relativity.”
This can happen when a star is dying.
Though they are black they are invisible to us.
The density of a black hole is so great it would be like taking the whole Earth and crushing into a volume smaller than a 1” marble!.
Stellar-mass: 3 to 20 times the mass of our Sun
Supermassive: Black holes with millions to billions of times the mass of our Sun
Mid-mass: In between stellar-mass and supermassive.
Newton and his universal theory of universal gravitation. This Project explains what this theory is, how Newton proposed it and some other information about Isaac Newton.
I am Nihal Jani from ahmedabad, studying in Sakar English School, and I found that there are no nice ppt's on this interesting topic, so I made one and shared it.
Newton and his universal theory of universal gravitation. This Project explains what this theory is, how Newton proposed it and some other information about Isaac Newton.
I am Nihal Jani from ahmedabad, studying in Sakar English School, and I found that there are no nice ppt's on this interesting topic, so I made one and shared it.
It is said that fact is sometimes stranger than fiction, and nowhere is this more true than in the case of black holes. Black holes are stranger than anything dreamt up by science fiction writers, but they are firmly matters of science ~fact.
Journey Through the Cosmos: Exploring Black Holes & Dr. Stephen Hawking's Leg...TUHIN SAHA
Title: Journey Through the Cosmos: Exploring Black Holes & Dr. Stephen Hawking's Legacy
Embark on a captivating journey through the depths of space and the brilliant mind of one of history's most renowned scientists, Dr. Stephen Hawking. In this enlightening presentation, we delve into the enigmatic phenomenon of Black Holes, their mysterious nature, and the groundbreaking discoveries that have shaped our understanding of the universe.
Unlock the secrets of these celestial wonders as we explore topics such as the fundamental question: What is a Black Hole? Delve into the gripping tale of their discovery and unravel the intricate process of their formation. From the mind-bending structure of Black Holes to the various types that exist across the cosmos, each slide unveils a new layer of cosmic intrigue.
But what happens if someone were to venture too close, falling into the gravitational abyss of a Black Hole? Discover the scientific speculation and theories that surround this captivating scenario, offering insight into the ultimate fate of such an intrepid explorer.
Moreover, journey through the extraordinary life and groundbreaking research of Dr. Stephen Hawking, a visionary whose contributions to theoretical physics revolutionized our understanding of the cosmos. Explore the trials and triumphs of his remarkable journey, from his early years to his groundbreaking work on Black Holes and beyond.
Black holes are the most mysterious objects in the Universe. Black holes are huge hungry monsters which even devours light. Yes, even light cannot escape the black hole.
"Black holes are where God divided by zero" - Albert Einstein
Black hole – A region in the space where the gravitational pull is so strong that neither substance nor light can leave this area.
Hey I'm DIVYA SHREE NANDINI. I'm here with my new presentation on Black Hole. I'm sure you'll find it interesting. well first thing what is black hole- "Black hole, cosmic body of extremely intense gravity from which nothing, not even light, can escape. A black hole can be formed by the death of a massive star. When such a star has exhausted the internal thermonuclear fuels in its core at the end of its life, the core becomes unstable and gravitationally collapses inward upon itself, and the star’s outer layers are blown away. The crushing weight of constituent matter falling in from all sides compresses the dying star to a point of zero volume and infinite density called the singularity." wanna know more about it then come with me. :)
2. Defining a Black Hole A black hole, in simple terms, is a region of space from which nothing, not even light, can escape. Surrounding a black hole is an undetectable surface which marks the point of no return. It is believed that anything that enters in a black hole is forever lost in a magnitude of gravitational forces.
3. How the black hole was theorized The most exclusive and closest mathematical calculations and laws of black holes were created by Albert Einstein. It was during a solar eclipse where the sun’s light rays were deflected by a gravitational force. This observation was carefully examined by Einstein and the theory of general relativity had become famous.
4. Continued.. The theory of general relativity was the first major new theory of gravity since Isaac Newton’s more than 250 years ago. This idea splurged into the scientific minds of many people and now a new era of imagination had begun. Days of testing and solving mathematical equations all pointed to one thing, black holes.
5. Theory of general relativity and black holes General relativity is the relationship between time and space. Gravity has much to do this because in this theory, it is the key factor to slowing time down or speeding it up. Black holes are believed to have an unbelievable gravitational force within. This is where general relativity plays its biggest role. Light moves faster than anything in the universe and does not bend. However, when it encounters a black hole, light bends and thus defeats the concept of the correlation of space and time. Space and time are affected by the encroachment of black holes.
7. Physical features of the black hole The black hole is actually surrounded by a cluster of stars and gas particles. The stars surround the black hole because of the strong gravitational forces at hand. In the center is the event horizon, basically the point where there is the strongest gravitational force and nothing can therefore escape. This point is said to theoretically stop time.
8. Continued… Black holes feed on stars. Stars are the energizing fuel for black holes and eventually they burn out because of the extreme gravitational pull expressed onto them. Stars collapse because of black holes. When they eventually have no more force/energy within them, they are simply destroyed. Black holes can feed on giants stars such as suns. The force of a lack hole is unstoppable and inevitably gets the sun’s complete energy.
9. The ultimate black hole Black holes are extremely massive. The largest black hole is a super massive black hole. The theoretical size of it is 10 million times larger than that of our own sun. This supplements the idea that black holes can very easily consume any and all stars within our universe.